package com.uraurora.crescent.function;

import java.util.Objects;

@FunctionalInterface
public interface Func8<T1, T2, T3, T4, T5, T6, T7, T8, RT> {

    RT on(T1 t1, T2 t2, T3 t3, T4 t4, T5 t5, T6 t6, T7 t7, T8 t8);

    default <V> Func8<T1, T2, T3, T4, T5, T6, T7, T8, V> after(Func1<? super RT, ? extends V> after) {
        Objects.requireNonNull(after);
        return (T1 t1, T2 t2, T3 t3, T4 t4, T5 t5, T6 t6, T7 t7, T8 t8) ->
                after.on(on(t1, t2, t3, t4, t5, t6, t7, t8));
    }

    default Func7<T2, T3, T4, T5, T6, T7, T8, RT> curry1(T1 t1){
        return (t2, t3, t4, t5, t6, t7, t8) -> on(t1, t2, t3, t4, t5, t6, t7, t8);
    }

    default Func7<T1, T3, T4, T5, T6, T7, T8, RT> curry2(T2 t2){
        return (t1, t3, t4, t5, t6, t7, t8) -> on(t1, t2, t3, t4, t5, t6, t7, t8);
    }

    default Func7<T1, T2, T4, T5, T6, T7, T8, RT> curry3(T3 t3){
        return (t1, t2, t4, t5, t6, t7, t8) -> on(t1, t2, t3, t4, t5, t6, t7, t8);
    }

    default Func7<T1, T2, T3, T5, T6, T7, T8, RT> curry4(T4 t4){
        return (t1, t2, t3, t5, t6, t7, t8) -> on(t1, t2, t3, t4, t5, t6, t7, t8);
    }

    default Func7<T1, T2, T3, T4, T6, T7, T8, RT> curry5(T5 t5){
        return (t1, t2, t3, t4, t6, t7, t8) -> on(t1, t2, t3, t4, t5, t6, t7, t8);
    }

    default Func7<T1, T2, T3, T4, T5, T7, T8, RT> curry6(T6 t6){
        return (t1, t2, t3, t4, t5, t7, t8) -> on(t1, t2, t3, t4, t5, t6, t7, t8);
    }

    default Func7<T1, T2, T3, T4, T5, T6, T8, RT> curry7(T7 t7){
        return (t1, t2, t3, t4, t5, t6, t8) -> on(t1, t2, t3, t4, t5, t6, t7, t8);
    }

    default Func7<T1, T2, T3, T4, T5, T6, T7, RT> curry8(T8 t8){
        return (t1, t2, t3, t4, t5, t6, t7) -> on(t1, t2, t3, t4, t5, t6, t7, t8);
    }

}
